Portion of a display screen with a graphical user interface



FIG. 1 is a front view of a portion of a display screen with graphical user interface showing our new design;

FIG. 2 is a front view of a portion of the display screen showing a second embodiment of the graphical user interface of FIG. 1;

FIG. 3 is a front view of a portion of the display screen showing a third embodiment of the graphical user interface of FIG. 1; and,

FIG. 4 is an embodiment of a front view of a portion of a display screen showing a fourth embodiment of the graphical user interface of FIG. 1.

The broken line showing of the display screen is for the purpose of illustrating environment and forms no part of the claimed design. The broken line showing of elements on the display screen illustrate portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a portion of a display screen with a graphical user interface, as shown and described. 